Sifter



Dec.' s, 1925.

CM.STANTON SIFTER Filed Oct. 13, 1922 Hy, 3 Il m @Jim- @my @j/04, AWE

'Patented Dec. 8, 1925.

UNITED STATES PATENT OFFICE.-

CHARLOTTE M. STANTON, OE DES. MOINES, IOWA; BAROLAY STANTON ADMINISTRA-TOR 0F THE SAID CHARLOTTE M. STANTON, DECEASED.

SIETER.`

Application filed UctoberlS, 1922. Seriall No. 594,251.

To all fr0/rom t may concern'.

Be it known that I, CHARLOTTE M. STAN- TON, a citizen of the UnitedStates, and a resident of Des Moines, in the county of Polk, State ofIowa, have invented a certain new and useful Sifter, of which thefollowing is a specification.

The object of my invention is to provide a sifter of simple, durable andinexpensive construction especially designed for use in the treatment offiour in preparing same for use in cake baking and the like, where it isdesirable to repeatedly pass flour through a fine sieve in order tothoroughly and completely separate the particles of flour from 4 eachother and leave the Hour, after going through the sifting process, in alight fluffy condition with all of the particles thoroughly separated.

More specifically it is my object to provide a devieeof this class inwhich a number of sieves and the supports therefor may all be made ofwire screen, thereby producing a device of extremely simple andinexpensive construction.

Further it is myy object to provide a device of this class in which thescreens may be bodily removed from the container or replaced therein.

.A further object is to provide a device of this class in which acertain quantity of flour may be placed in the top of the receptacle,and then all of the flour may be made to pass through the varioussieves, and all of it collected and retained within the space between,whereupon the receptacle may be in-` verted and all of the flour be madeto again pass through the same set of sieves and discharged at the openend of the receptacle so that the flour may be subjected to a com,

paratively great number of sifting processes in a minimum of time withsmall effort and without danger of spilling the flour and without thenecessity of using any other receptacle than that in which the sievesare mounted.

My invention consists in the construction, arrangement and combinationof the various parts of the device, whereby the objects contemplated areattained, as hereinafter more fully set forth, pointed out in my claims,and illustrated in the accompanying drawings, in which: Y

Figure 1 shows an isometric view of a flour sifter embodying myinvention.

Figure 2 shows a vertical., transverse, sectional view of the same.

Figure 3 shows a vertical, transverse Vview of the same on the line 3-3of Figure 2; and

Figure 4 shows an enlarged detail, sec- 'tional view illustrating themeans for vadjustably clamping the sieves within the receptacle.

`Referring tothe accompanying drawings I have used the reference numeral10 to indicate the body portion of the receptacle which is preferablyrectangular in cross section and open at the top and closed atthebottom.

I find it advantageous to make this receptacle of fiber board, though,of course, other materials may be employed.`

A cover 11 is provided which may be fitted over the upper end of thereceptacle.y The screens are preferably constructed as follows:

,I first provide a flat piecel ofwoven wire screen 12 of a size to fitinto and. against the inner edge of one side of the receptacle. I thenprovide a long narrow strip of woven wire screen, and commencing atjthetop end marked 13 this screen extends upwardly to a vdistancecorrespondingto the length of the screen 12. It is then extendedhorizontally at 14, then downwardly a short distance at 15, and thisdownwardly extended portion is permanently united to the part 12 bystaples 16 or the like. Then at the point marked 17 the screen is againextended lhorizontally until it meets the part 13, and then downwardlyat 18 a short distance and at this point it is connected by staples 19to the part 13. It is then extended horizontally at 20 and thendownwardly at 21 where it is united by staples 22 to the part 12. It isagain extended horizontally at 23 and its end is united by staples 24 tothe lower end of the part 13.

Two wire bails or handles 25 are provided, each of which has its endsunited to the screen preferably by solder and its central portionextends horizontally across the interior of the receptacle and hooks 26are provided to engage the bail and extend through the receptacle, andwing nuts 27 are provided on the outer ends of the hooks whereby thebails may be clamped to the receptacle and readily and easily detachedtherefrom.

In practical operation the screens are formed andun'ited in the mannerdescribed, and then theyy are set down loosely inside of the receptaclecured by the hooks 26, then the device is readys for operation.

In using a quantity offlour it is placed on top of the receptacle andthen on top of the upper screen, and then if desired a cover may beapplied and the operator shakes the receptacle until all of the ourpassesfthrough the'four screens and is collected in the space below thelower screen Within"thereceptacle. Then if desired, the operator mayremove the detachable cover and invert-'the receptacle, and'againfshakeit until all of theflour travels again through the `same four screens,and is discharged from the open top of the receptacle into thevessellwhere it isfto beused for calrebaking or the like.

Inthe event that anything should'become lodged'betweenthe severalscreens, then the operator may IreleaseY the `wing Vnutsr 27, unhookthebails and use the bails 25 to remove the screens, Whereuponthey maybe'readily and easily cleaned and replaced.

In practiceI 'have Ifound that'in preparingifiourfor cake bakingorthe'like, I may, with my improved -sifter,fsubject the flour toVYeight sifting Joperations in substantially the same time as has beenemployed heretofore in subjecting'it'to a single operation, but inadditiontto thisfI do notneed any other receptacle'or'vesselthan the oneforming'the receptacle "for my sitter, because afterthelflour has gonethrough four screens it yis all collected Within the receptacle, then byinverting the Vreceptacle it is discharged out 4ofthe open'end thereof,so that 'af great economyis eifected in the amount of time necessary'tocompletevthe first operation and thenumber of vessels. and receptaclesrequiredto hold the flour during such repeated sifting operations,

I claim as my invention:

and finally detachably se-V .1. An improved sitter comprising areceptacle, two screen lsupports each formed of wire netting anddesigned to be inserted in the receptacle on opposite sides thereof,means vfor detachably securing vthem to the receptacle, and a vseries ofscreens formed completely of a single piece of screen Wire nettingattached at one end to one of the screen supports, extended across thereceptacle and attached to the other screen support, and then extendeddownwardly a short distance and then again across the receptacle tothefirst screen support and attached thereto, and so on throughout itsentire length, substantially as and for the purposes stated.

2. In a sifter, the combination of a suitablel receptacle, a sieve, asupporting frame therefor formed complete of wire netting comprising twoside members and a series of screen members-extended Vfrom one of theside members to the other and spaced apart from eachother, and means'forsecuring the screen -members to the frame member to thereby form a sievedevice consisting of a complete unit which may be placed in or removedfrom the receptacleshapedto receive and lit it.

3. In a sifter, the combination of a suitable receptacle, a sieve, asupporting frame therefor formed complete of' wire netting comprisingtwo side members and a series of' screen members extended from one ofthe side members to the other and spaced apart from each other, meansfor securing the screen members to the frame member to therebyform asieve device consisting of a complete unit `which may be placed in orremoved from the receptacle shaped to 'receive and t it, one or `morebails fixed'to the screen and extended upwardly, and means fordetachably securing thebails in position Within the receptacle.

Des Moines, Iowa, July 31,1922.

CHARLOTTE M. STANTON.

